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Form of thermal efficiency
Fuel efficiency (or fuel economy) is a form of thermal efficiency, meaning the ratio of effort to result of a process that converts chemical potential
Fuel_efficiency
Distance traveled by a vehicle compared to volume of fuel consumed
The fuel economy or fuel efficiency of an automobile relates to the distance traveled by a vehicle and the amount of fuel consumed. It can be expressed
Fuel_economy_in_automobiles
Discussing what form of transport is the most fuel efficient and economical
such energy is presented in liquid fuels, electrical energy or food energy. The inverse of the energy efficiency in transport is the energy consumption
Energy efficiency in transport
Energy_efficiency_in_transport
Methods for higher energy efficiency
recognition of energy efficiency as the "first fuel", meaning the ability to replace or avoid the consumption of actual fuels. In fact, International
Efficient_energy_use
Aircraft fuel efficiency
The fuel economy in aircraft is the measure of the transport energy efficiency of aircraft. Fuel efficiency is increased with better aerodynamics and
Fuel_economy_in_aircraft
Fuel economy standards in the U.S.
average fuel economy of cars and light trucks (trucks, vans and sport utility vehicles) produced for sale in the United States. More recently, efficiency standards
Corporate average fuel economy
Corporate_average_fuel_economy
Work done divided by heat provided
Engine efficiency of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful
Engine_efficiency
Engine in which fuel combusts with an oxidizer
different ways: energy efficiency fuel/propellant consumption (brake specific fuel consumption for shaft engines, thrust specific fuel consumption for jet
Internal_combustion_engine
Measure of thermal efficiency
The annual fuel utilization efficiency (AFUE; pronounced 'A'-'Few' or 'A'-'F'-'U'-'E') is a thermal efficiency measure of space-heating furnaces and boilers
Annual fuel utilization efficiency
Annual_fuel_utilization_efficiency
2010s narrow-body airliner by Airbus
& Whitney PW1100G-JM engines, Airbus advertises a 20% increase in fuel efficiency per passenger, with 500 nautical miles (930 km; 580 mi) more range
Airbus_A321neo
Driving using techniques that reduce fuel consumption
to reduce their fuel consumption, and thus maximize fuel efficiency. Many drivers have the potential to improve their fuel efficiency significantly. Simple
Energy-efficient_driving
Aircraft engine that produces thrust by emitting a jet of gas
complex high-bypass turbofan engines. They give higher speed and greater fuel efficiency than piston and propeller aeroengines over long distances. A few air-breathing
Jet_engine
Device that converts the chemical energy from a fuel into electricity
hydrogen as fuel, and limit the diffusion of nitrogen into the anode via the proton exchange membrane, which forms NOx. The energy efficiency of a fuel cell
Fuel_cell
Efficiency leads to increased demand
reduce fuel consumption. The issue has been re-examined by modern economists studying consumption rebound effects from improved energy efficiency. In addition
Jevons_paradox
Fuel efficiency of an engine design with respect to thrust output
Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption
Thrust-specific fuel consumption
Thrust-specific_fuel_consumption
Measure of the fuel efficiency of internal combustion engines
Brake-specific fuel consumption (BSFC) is a measure of the fuel efficiency of any prime mover that burns fuel and produces rotational, or shaft power.
Brake-specific fuel consumption
Brake-specific_fuel_consumption
Hybrid electric car by Honda
structure to maximize fuel efficiency and minimize emissions. Until 2015, the first generation Insight ranks as the most fuel-efficient United States
Honda_Insight
Wide-body airliner, last production series of the 747
an increased range of 8,056 nmi (14,920 km; 9,271 mi), with better fuel efficiency and reduced noise. Changes studied included raked wingtips similar
Boeing_747-8
Mazda motor vehicle engine
a series of automobile technologies developed by Mazda to increase fuel efficiency and engine output. The initial announcement of the Skyactiv technologies
Skyactiv
Ratio between the useful output and the input of a machine
and 1. Energy conversion efficiency depends on the usefulness of the output. All or part of the heat produced from burning a fuel may become rejected waste
Energy_conversion_efficiency
Topics referred to by the same term
light Fuel efficiency, the efficiency of converting potential energy in a fuel into kinetic energy Energy efficiency in transportation, the fuel economy
Energy_efficiency
Reciprocating internal combustion engine
process an Atkinson cycle in partial throttle conditions for better fuel efficiency. These features are also shared with Mercedes' M278 V8 engine, announced
Mercedes-Benz_M276_engine
Turbojet engine component
to a larger, heavier engine. However, it increases fuel consumption and decreases fuel efficiency, which limits its use to short periods. This aircraft
Afterburner
Airbreathing jet engine designed to provide thrust by driving a fan
wasted fuel). The increase in thermal efficiency is at the expense of a worse propulsive efficiency with the net effect being a lower overall efficiency. In
Turbofan
Type of internal combustion engine that uses compression to create combustion
amount of fuel that is injected, and thus the air-fuel ratio is usually high.[citation needed] The diesel engine has the highest thermal efficiency (see engine
Diesel_engine
Legal requirements governing air pollutants released into the atmosphere
Table chart for Gasoline-fueled or LPG- fueled Motor Vehicles, Diesel-Powered Motor Vehicles, and Vehicle Fuel Efficiency Standards. From 1 January 2024
Emission_standard
Motor vehicle
a long-travel damper to help achieve quiet operation and improved fuel efficiency. Applications: Toyota Opa – 2.0L (2000–2005) Toyota Allion, Premio
Toyota_K_CVT_transmission
Large single-aisle airliner family
more capable and more efficient than the preceding 727. The focus on fuel efficiency reflected airline concerns over operating costs, which had grown amid
Boeing_757
Large twin-aisle airliner family
were to increase fuel efficiency and allow airlines to add 14 additional seats to the airplane, increasing per seat fuel efficiency by 5%. Mindful of
Boeing_777
Fuel cell that produces electricity by oxidization
electrolyte. Advantages of this class of fuel cells include high combined heat and power efficiency, long-term stability, fuel flexibility, low emissions, and
Solid_oxide_fuel_cell
Fuel made from vegetable oils or animal fats
is approximately 9% lower than that of standard diesel, impacting fuel efficiency. Biodiesel production has evolved significantly, with early methods
Biodiesel
Outer surface which covers much of its wings and fuselage
magnesium and copper. Advances in aircraft skin materials can improve fuel efficiency by affecting an aircraft’s weight, aerodynamics, durability, and maintenance
Skin_(aeronautics)
Vehicle not powered by petrol or diesel
battery/supercapacitor and motor–generator technologies, they have an overall better fuel efficiency than conventional combustion vehicles. Other research and development
Alternative_fuel_vehicle
Class of truck
uses light truck as a vehicle class in regulating fuel economy through the Corporate Average Fuel Economy (CAFE) standard. The class includes vans, minivans
Light_truck
Wide body airliners developed from the DC-10
remaining range advantage over earlier versions while maintaining higher fuel efficiency than both the trijet MD-11 and the quadjet Airbus A340. Airbus, which
McDonnell_Douglas_MD-11
Motorized version of a rickshaw
usually a three-wheeled vehicle, powered by an engine. They use a variety of fuels, with the most common being petrol, compressed natural gas, liquefied petroleum
Auto_rickshaw
Efficiency of incineration in terms of usable heat energy and minimization of emissions
Combustion efficiency refers to the effectiveness of the burning process in converting fuel into heat energy. It is measured by the proportion of fuel that
Combustion_efficiency
Internal combustion engine type
effects of compression on the fuel charge. In 1862, Otto attempted to produce an engine to improve on the poor efficiency and reliability of the Lenoir
Four-stroke_engine
Family of internal combustion engines
the successor of Toyota's K engine. The goal was to achieve good fuel efficiency and performance as well as low emissions with a modern design. The
Toyota_A_engine
Reciprocating internal combustion engine
reputation for being relatively small and powerful at the expense of poor fuel efficiency. The engines became popular with kit car builders, hot rodders and
Mazda_Wankel_engine
Aircraft component fixed to the end of the wings to improve performance
4-6 percent increase in fuel efficiency and as much as a 6% decrease in in-flight noise from the use of winglets. Actual fuel savings and the related
Wingtip_device
Series of turbocharged, direct-injection gasoline engines
volume) naturally aspirated engines, while achieving up to 20% better fuel efficiency and 15% fewer greenhouse emissions, according to Ford. The manufacturer
Ford_EcoBoost_engine
Plug-in hybrid sports car developed by BMW
the coupé and 53 km (33 mi) for the roadster. The BMW i8 coupé had a fuel efficiency of 2.1 L/100 km (134.5 mpg‑imp; 112.0 mpg‑US) under the NEDC test with
BMW_i8
Part of a jet engine where fuel is burned
characteristics, such as fuel efficiency, levels of emissions, and transient response (the response to changing conditions such as fuel flow and air speed)
Combustor
European wide-body airliner
suboptimal aspect ratio reduces fuel efficiency by about 10% and increases operating costs several per cent, considering fuel costs constitute about 50% of
Airbus_A380
Reciprocating internal combustion engine
Toyota says that with idling stop and other functions, it will lead to fuel efficiency gains of approximately 15 per cent. Main differences between 1NR-FE :
Toyota_NR_engine
German inventor and engineer (1858–1913)
mention the fact that further fuel sources weren't required. Fuel efficiency was measured 75% above the 10% theoretical efficiency for steam engines. From 1893
Rudolf_Diesel
American industry
35% to 60% over traditional vehicles. Drivers themselves may improve fuel efficiency by using a method called progressive shifting, in which the driver
Trucking industry in the United States
Trucking_industry_in_the_United_States
Strategy of fuel management
increasing operational efficiency, and improving fuel management. MFM has grown in importance due to the rising costs of marine fuel and increasing government
Marine_fuel_management
Mixture formation system
can further improve fuel efficiency and reduce exhaust emissions. In practice, however, it has not shown significant efficiency advantages over a conventional
Gasoline_direct_injection
Type of rocket engine
conventional deflagrative combustion, potentially enabling increased fuel efficiency. Disadvantages include instability and noise.[citation needed] The
Rotating_detonation_engine
Assembly of heat engines that work in tandem from the same source of heat
Combining two or more thermodynamic cycles improves overall efficiency, which reduces fuel costs. The principle is that after completing its cycle in the
Combined-cycle_power_plant
Car model
aimed to provide an improved ride, better handling, and improved fuel efficiency. The 1973 oil crisis and increasingly stringent emission and safety
Mercedes-Benz_W126
Product sold in the automotive aftermarket
Some devices claim to improve efficiency by changing the way that liquid fuel is converted to vapor. These include fuel heaters and devices to increase
Fuel_saving_device
American adaptive cycle engine
cycle design can direct air to the bypass third stream for increased fuel efficiency and cooling or to the core and fan streams for additional thrust and
Pratt_&_Whitney_XA103
Electric convertible sports car (2008–2012)
gasoline-fueled vehicle must be multiplied by the fuel's "well-to-pump" efficiency. The DOE regulation specifies a "well-to-pump" efficiency of 83% for
Tesla Roadster (first generation)
Tesla_Roadster_(first_generation)
Device used for heating buildings
side or roof of the structure. Fuel efficiency in a gas furnace is measured in AFUE (Annual Fuel Utilization Efficiency). The name derives from Latin word
Furnace_(central_heating)
Geared turbofan engine produced beginning 2007
version of the A320neo's PW1100G. The said it would offers 1% more fuel efficiency, more durability, and 34,000 lbf (151 kN) of thrust, up to 8% more
Pratt_&_Whitney_PW1000G
American multinational automobile manufacturer
ECOnetic programme to address the market and legislative need for higher fuel efficiency and lower CO2 emissions. As opposed to the hybrid engine technology
Ford_Motor_Company
Relationship between drag on an aircraft and other variables
chosen to give 1% less fuel efficiency than maximum range speed, because this results in a 3-5% increase in speed. However, fuel is not the only marginal
Drag_curve
Type of automobile
environmental and safety-related reasons. They generally have poorer fuel efficiency and require more resources to manufacture than smaller vehicles, contributing
SUV
Measure of efficiency in aerospace engineering
overall propulsion system efficiency η {\displaystyle \eta } is the efficiency with which the energy contained in a vehicle's fuel is converted into kinetic
Propulsive_efficiency
Type of aircraft engine
1970s, aiming to combine the speed capability of turbofans with the fuel efficiency of turboprops, especially at high subsonic speeds. However, they have
Propfan
Reciprocating internal combustion engine
and replaced the Duratorq diesel engine family, offering optimised fuel efficiency and reduced CO2 and NOx emissions. An initial 2.0-litre (1,995 cc)
Ford_EcoBlue_engine
Automobile variable valve timing technology
improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high rpm, and lower fuel consumption at low
VTEC
Engine where combustion is pulsed instead of continuous
pulsejet with no additional fuel consumption. Gains of 100% increases in thrust are possible, resulting in a much higher fuel efficiency. However, the larger
Pulsejet
Device that converts heat flux into electrical energy
automobiles as automotive thermoelectric generators (ATGs) to increase fuel efficiency. Radioisotope thermoelectric generators use radioisotopes to generate
Thermoelectric_generator
Degree to which a process minimizes waste of resources
causes, in which case 100% of fuel or other input would be used to produce the desired result. In some cases efficiency can be indirectly quantified with
Efficiency
Reciprocating internal combustion engine
power and torque in the low-to-mid RPM range, as well as improving fuel efficiency. These engines are lightweight compared to earlier Toyota engines due
Toyota_E_engine
Tires that improve vehicle fuel efficiency compared with conventional tires
case of automotive applications, improving vehicle fuel efficiency as approximately 5–15% of the fuel consumed by a typical gas car may be used to overcome
Low_rolling_resistance_tire
Canadian narrow-body airliner family
aluminium-lithium fuselage, and optimised aerodynamics for better fuel efficiency. The aircraft family offers maximum take-off weights from 63.1 to 70
Airbus_A220
Fuel blend of 85% ethanol and 15% another liquid
characteristics such as high thermal efficiency, high octane rating, raised torque and with some advanced engines, better specific fuel consumption. In the United
E85
High-thrust turbofan jet engine
and higher bypass and compression ratios, it was designed to improve fuel efficiency by 10% compared to the GE90. It is rated at 110,000 lbf (490 kN) of
General_Electric_GE9X
Motor vehicle
fuel efficiency of 7.3 litres per 100 kilometres. The 190 D BlueEFFICIENCY was also compared to C 250 CDI BlueEFFICIENCY, which has fuel efficiency of
Mercedes-Benz_W201
Aircraft propulsion system efficient at a range of speeds higher and lower than sound's
a third, directable air stream. This stream bypasses the core when fuel efficiency is required or through the core for greater power. Under the Versatile
Variable_cycle_engine
Motor vehicle
the most fuel efficient two-seater car in the United States Environmental Protection Agency's (EPA) 2008 Fuel Economy Guide, with fuel efficiency ratings
Smart_Fortwo
Franco–American turbofan aircraft engine
more in this case), which increases the overall fuel efficiency of the engine (improving specific fuel consumption nearly 3%). The CFM56 is designed to
CFM_International_CFM56
American third-generation main battle tank
its fuel efficiency to something similar to a traditional internal combustion engine. This goal was not achieved: the engine consumed much more fuel than
M1_Abrams
Reciprocating internal combustion engine
percent better fuel efficiency than Mazda's R2 2.2 MZR-CD These engines are subjected to a number of recalls world-wide relating to leaking fuel injectors
Mazda_diesel_engines
Mixtures of common ethanol fuel types
as compared to 806 hp on 91-octane unleaded gasoline. The higher fuel efficiency of E100 (compared to methanol) in high performance race cars resulted
Common_ethanol_fuel_mixtures
Type of continuous-flow turbine engine
propeller. It operated for 9,700 hours using residual fuel (Bunker C) for 7,000 hours. Fuel efficiency was on a par with steam propulsion at 0.318 kg/kW (0
Gas-turbine_engine
Integrated system to monitor, control, and report on fuel consumption
primary purpose of a fuel management system is to reduce operational costs, prevent gasoline theft, and improve the overall efficiency of a fleet of vehicles
Fuel_management
Motor vehicle
next-generation compact car and also an engineering study of high fuel efficiency gasoline engine. The design theme of the Mazda Kiyora was water. It
Mazda_Kiyora
Increase in consumption following energy or resource savings
higher fuel efficiency in home heating technologies. If the rebound effect is larger than 100%, all gains from the increased fuel efficiency would be
Rebound_effect_(conservation)
Internal combustion engine designs
and four-stroke engines. Claimed advantages may include increased fuel efficiency, reduced mechanical complexity, and/or reduced emissions. These engines
Six-stroke_engine
Gearing that lowers engine revolutions
needs one gearing to reach maximum speed but another to reach maximum fuel efficiency at a lower speed. With the early development of cars and the almost
Overdrive_(mechanics)
Device for controlled nuclear reactions
stabilize this, regulating neutron absorbers and moderators in the core. Fuel efficiency is exceptionally high; low-enriched uranium is 120,000 times more energy-dense
Nuclear_reactor
American businessman (born 1957)
technological progress toward improving fuel efficiency, with the introduction of the Hybrid Electric Escape, the most fuel-efficient SUV on the market, achieving
William_Clay_Ford_Jr.
Period in American automotive history
a triumvirate of increasingly strict and comprehensive emissions, fuel efficiency and safety standards, — severely challenging the industry's ability
Malaise_era
diversion airports as reliability increased, and an increased emphasis on fuel efficiency. The engines of a 4-engined aircraft are most commonly found in pods
Four-engined_jet_aircraft
Reciprocating internal combustion engine
thermal efficiency), redesigned water jacket shape, piston cooling by oil jets, water-cooled EGR system and several other changes for fuel efficiency. The
Suzuki_K_engine
Airline trade association
for America also has been involved in promoting fuel efficiency and the development of alternative fuels. In April 2014, Nancy Young, A4A's Vice President
Airlines_for_America
Reciprocating internal combustion engine
engine could be mounted both longitudinally and transversely. Improved fuel efficiency and compliance with Euro 5 emission standards were other design objectives
Mercedes-Benz_OM651_engine
Merchant sailing ship of the 19th century
1860s. No true steamer (as opposed to an auxiliary steamship) had the fuel efficiency to carry sufficient cargo to make a profitable voyage. The auxiliary
Clipper
Luxury car model by Ford (1955–2005)
by restrictive emissions technology resulted in modest performance. Fuel efficiency was correspondingly poor. The big Thunderbirds were initially popular
Ford_Thunderbird
Rocket engine operation method
main advantage relative to other rocket engine power cycles is high fuel efficiency, measured through specific impulse, while its main disadvantage is
Staged_combustion_cycle
Motorcycle
Trail: 28.5 degrees / 4.6 in Wheelbase: 55.7 in Weight: 258 lb (117 kg) dry Fuel Capacity: 2.9 US gal (11.0 litres) Engine oil capacity: 2 liters 80 miles
Kawasaki_KLR250
Motor vehicle
model 1998 Chevrolet Metro 3-door hatchback among vehicles tested for fuel efficiency alongside two hybrid models: the redesigned Honda Insight and Toyota
Geo_Metro
Honda motor scooter
four-stroke configuration prioritised reduced emissions, improved fuel efficiency, and lower maintenance requirements, although with reduced peak power
Honda_Dio
Change in velocity per amount of fuel
measure of efficiency. In cars and planes, it typically corresponds with fuel efficiency, i.e. the distance travelled per unit mass or volume of fuel. In rocketry
Specific_impulse
FUEL EFFICIENCY
FUEL EFFICIENCY
Girl/Female
Gujarati, Hindu, Indian, Sanskrit
Full Belief; Full Confidence
Boy/Male
Hindu, Indian
Feel
Surname or Lastname
English
English : unexplained.Possibly a shortened form of any of several German compound surnames formed with Full- or Füll-.
Male
English
Short form of English Samuel, UEL means "heard of God," "his name is El," or "name of God."
Girl/Female
Gujarati, Hindu, Indian
Flower
Boy/Male
Indian
Full
Male
Hungarian
Hungarian form of Greek Emmanouel, EMÃNUEL means "God is with us."
Biblical
desiring God
Boy/Male
Muslim/Islamic
Feel
Boy/Male
Indian, Telugu
Ghee (Fuel for Yagna)
Boy/Male
Biblical
Desiring God.
Girl/Female
Hindu, Indian
Apropos Lightened; Fuel
Boy/Male
Muslim
Feel
Boy/Male
Indian
Feel
Boy/Male
Arabic, Australian, Hebrew
Loving Full Person; Loving Fuel
Male
Hungarian
Hungarian form of Greek Samouel, SÃMUEL means "heard of God," "his name is El," or "name of God."
Girl/Female
Tamil
Anandamayi | ஆநஂதமயீ
Full of Joy, Full of happiness
Anandamayi | ஆநஂதமயீ
Girl/Female
Arabic
Arabian Jasmine
Boy/Male
Indian, Sanskrit
Sacrificial Fuel
Girl/Female
Tamil
Anandmayee | ஆநஂதமயீ
Full of Joy, Full of happiness
FUEL EFFICIENCY
FUEL EFFICIENCY
Boy/Male
Hindu, Indian, Tamil
Handsome
Boy/Male
Hindu, Indian
Son of Lord
Girl/Female
German, Hebrew
Praise; Prospers in Battle
Girl/Female
Arabic, Muslim, Pashtun
Name of Flower; Daughter of Abdullah Al-rumiyah was a Very Pious and Generous Woman who Gave Much in Charity
Surname or Lastname
English
English : habitational name from any of various places named Westbury, for example in Buckinghamshire, Gloucestershire, Hampshire, Shropshire, Somerset, and Wiltshire, from Old English west ‘west’ + byrig, dative case of burh ‘fortress’, ‘fortified town’.
Boy/Male
Muslim/Islamic
Ascent height
Boy/Male
Italian
strong warrior'.
Boy/Male
Arabic, Indian, Kannada, Punjabi
Fire; Cloud
Girl/Female
Australian, Biblical, Japanese
Poor; A Smiter; Ten Thousand
Boy/Male
American, Anglo, Australian, British, Christian, Danish, English, French, German, Polish, Shakespearean, Swedish, Teutonic
Divinely Powerful; Name of a King; God of the Forest; Power of God; God's Power
FUEL EFFICIENCY
FUEL EFFICIENCY
FUEL EFFICIENCY
FUEL EFFICIENCY
FUEL EFFICIENCY
a.
A suffix signifying full of, abounding with; as, boastful, harmful, woeful.
v. i.
To become full or wholly illuminated; as, the moon fulls at midnight.
Compar.
Having the attention, thoughts, etc., absorbed in any matter, and the feelings more or less excited by it, as, to be full of some project.
v. t.
To feed with fuel.
Compar.
Filled up, having within its limits all that it can contain; supplied; not empty or vacant; -- said primarily of hollow vessels, and hence of anything else; as, a cup full of water; a house full of people.
v. t.
To store or furnish with fuel or firing.
a.
Full in form or shape; rounded out with flesh.
Compar.
Not wanting in any essential quality; complete, entire; perfect; adequate; as, a full narrative; a person of full age; a full stop; a full face; the full moon.
a.
Full to the brim; quite full; chock-full.
n.
A sensation communicated by touching; impression made upon one who touches or handles; as, this leather has a greasy feel.
v. t.
To perceive by the mind; to have a sense of; to experience; to be affected by; to be sensible of, or sensetive to; as, to feel pleasure; to feel pain.
a.
Quite full; choke-full.
a.
Full of courage or confidence.
Compar.
Abundantly furnished or provided; sufficient in. quantity, quality, or degree; copious; plenteous; ample; adequate; as, a full meal; a full supply; a full voice; a full compensation; a house full of furniture.
a.
Having a full supply of blood.
a.
Fully expanded, as a blossom; as, a full-bloun rose.
v. t.
To touch; to handle; to examine by touching; as, feel this piece of silk; hence, to make trial of; to test; often with out.
adv.
With full speed.
a.
Of pure blood; thoroughbred; as, a full-blooded horse.